Zobrazeno 1 - 10 of 12 pro vyhledávání: '"O A, Fathalla"'
1
Inhibitory effect of some new uracil and thiouracil derivatives on cercarial penetration enzymes
Autor: M. M. Bahgat, Maha S. Almutairi, Mogedda E. Haiba, O. A. Fathalla, A. S. Maghraby, Manal M. Anwar
Publikováno v: Research on Chemical Intermediates. 39:2157-2185
Some uracil- and thiouracil-5-sulfonohydrazide derivatives have been synthesized to be evaluated as antischistosomal agents. N-[2-(1,5-Dimethyl-3-oxo-2-phenylpyrazolin-4-yl)-4-oxo-1,3-thiazolidin-3-yl]-4-oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-su
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::334e8ff1f84782140c317b18eccd95ff
https://doi.org/10.1007/s11164-012-0748-x
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2
Synthesis, anti-microbial evaluation, and molecular modeling of new pyrazolo[3,4-d]pyrimidine derivatives
Autor: Ahmad F. Eweas, N. M. Fawzy, Sh. I. Abdel-Moez, O. A. Fathalla, S. A. Swelam
Publikováno v: Medicinal Chemistry Research. 21:3848-3857
Synthesis of some new pyrazolo[3,4-d]pyrimidine derivatives using readily available starting materials are described. A one-pot multi component cyclocondensation reaction was used to prepare the novel 3-methyl-4-aryl-1-phenyl-1H-pyrazolo[3,4-d]pyrimi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::949bd72af695acb323c934523bf91bfe
https://doi.org/10.1007/s00044-011-9911-y
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3
Synthesis of new 2-thiouracil-5-sulphonamide derivatives with antibacterial and antifungal activity
Autor: Samir M. Awad, Mosaad S. Mohamed, O. A. Fathalla
Publikováno v: Archives of Pharmacal Research. 28:1205-1212
2-Thiouracil-5-sulphonic acid N-(4-acetylphenyl) Amide (1) was reacted with a series of aromatic aldehydes giving chalcones 2 (Claisen-Schemidt reaction), some of these chalcones were reacted with urea and thiourea giving pyrimidine-2-one and pyrimid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::659c6186aca38a22b54cd8b536cc49f6
https://doi.org/10.1007/bf02978199
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4
Synthesis of New Uracil-5-Sulfonamide Derivatives and Immuno-Stimulatory Effect of a Chemically Modified Hemolymph ofBiomphalaria alexandrina on Schistosoma mansoni Infected Mice
Autor: A. S. Maghraby, Mogedda E. Haiba, O. A. Fathalla
Publikováno v: Archives of Pharmacal Research. 26:358-366
Some N-p-substituted phenyl uracil-5-sulphonamide derivatives have been synthesized to be evaluated as molluscicides against Biomphalanaria alexandrina snails, the intermediate host of Schistosoma mansoni. Schistosoma mansoni infected mice were treat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d001d1cddd65ba1f57ad592f22714701
https://doi.org/10.1007/bf02976692
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7
Synthesis and Biological Evaluation of New Pyrimidine Derivatives
Autor: O. A. Fathalla, Mosaad S. Mohamed, Samir M. Awad, H. H. Radwan
Publikováno v: ChemInform. 37
4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine (2-thiouracil) 1 is reacted with a series of diazotized aromatic amines to give compounds 2a-f. On the other hand compound 1 is s-methylated by methyl iodide giving 4-oxo-2-methylthioxo 1,2,3,4-tetrahydropy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7db366540e497d935b2547d75c2c4c00
https://doi.org/10.1002/chin.200633166
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8
Synthesis of pyrido[2,1-c][1,2,4]triazine,1,2,4 triazolo[4,3-a] pyridine and 2-(substituted-pyrazolyl)nicotinonitrile and their effect on Biomphalaria alexandrina snail enzymes
Autor: M E A, Zaki, O A, Fathalla, S A, Swelam, H F, Aly
Publikováno v: Acta poloniae pharmaceutica. 61(1)
The reaction of 2-hydrazino-4-(4-methoxyphenyl)-6-pheny-nicotinonitrile 3 with halo compounds yielded 4a-c,5,6. Heating 3 with carbon disulphide gave 7-(4-methoxyphenyl)-5-phenyl-3-thioxo-2,3-dihydro [1,2,4-] triazolo [4,3-a] pyridine-8-carboxylic am
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::9779080165783fed139c8f79efe56e18
https://pubmed.ncbi.nlm.nih.gov/15259858
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9
Facile synthesis of fused pyrazolo[1,5-a]pyrimidinepyrazolo [1,5-a]triazines and N-sulphonamidopyrazoles as antiinflammatory
Autor: O A, Fathalla, M E A, Zaki, S A, Swelam, S M, Nofal, W I, el-Eraky
Publikováno v: Acta poloniae pharmaceutica. 60(1)
Interaction of hydrazine hydrate with methyl (2-E)-2-cyano-3-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino]-3-(methylsulphanyl)-2-propenoate 2 which was obtained by the reaction of methyl-2-cyano-3,3-bis(methylsulphanyl) acrylate 1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::5bfd982e99fbb92bc36c8edaf5bcca5f
https://pubmed.ncbi.nlm.nih.gov/12848368
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10
Synthesis of new 2-thiouracil-5-sulfonamide derivatives with biological activity
Autor: W. A. Zaghary, Mosaad S. Mohamed, O. A. Fathalla, H. H. Radwan, Samir M. Awad
Publikováno v: Archives of pharmacal research. 25(3)
2-Thiouracil-5-sulfonylchloride 1 reacted with a series of aromatic and heterocyclic amines to give 2a-j. The same compound 1 was reacted with a series of sulphonamides giving different sulphonamides of type 3a-e. On the other hand compound 1 was all
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ab997358cf7ed17987b3cba7924a385
https://pubmed.ncbi.nlm.nih.gov/12135094
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